Gregory3D Hydro 3L Day Hiking/Hydration Water Reservoir

Great hiking bladder. I was looking for an affordable quick option for water while hiking, and I am very happy I bought this one. It is very easy to use, has no leaks, and is very durable. The design is option as it fits in many backpacks and the little magnet attachment for the tube is amazing for keeping it in place.

Took this hydration reservoir on a hiking trip in Chile, and it was absolutely fantastic! The design is super user-friendly, with an easy-to-fill opening and a secure, no-leak bite valve. Even after hours of trekking in different terrains, it held up perfectly—no leaks, no weird plastic taste, just a reliable water source on the go.I also love how the 3D shape helps it dry faster after cleaning, which is a big plus compared to traditional hydration bladders. The durability is impressive, and it fit well in my pack without sloshing around too much.If you need a solid, well-designed reservoir for hiking or travel, this one is a winner. Highly recommend!

The tube is long enough for me, the bite valve works really well, it's super easy to fill because of the "3D" design which also makes it easier to dry than any other pack I've ever had. No plastic taste that I can detect which was a huge problem for my on my last two packs. Build quality seems very good, no leaks from the pack, filler or hose. Three liters is a big upgrade from two for hikes in Summer Arizona heat. The built in hook on the bottom is very useful for hanging the pack to dry, and the no-leak quick release allows me to remove and fill the pack without having to thread the hose back into the pack and straps, and I can pre-fill the pack and store it in the refrigerator over night without the hose flopping around in the fridge. I also appreciated the minimalist recyclable cardboard packaging

Works great. It’s as good as the reviews in various media articles say.

My old one started leaking, so I bought a new one. Just days after the 30-day return window expired, it started leaking. What use is a backpack that you can't even put in the car's trunk or frunk? I have to carefully carry it on the back seat floor in case it randomly decides to leak more water out.This product is so cheap feeling as well, all the connection points seem like they used the cheapest possible components. Buy some other manufacturer that has better quality control. Hopefully Gregory will give me a replacement, but I bet it'll just leak again.

Oh my goodness, this hydration bladder is all the things. I just picked up a Gregory Zulu 24 LT, with the little hook to hold it, so I swapped out my old hydration bladder just for the hook, with no idea of the other features I was going to love. The "hanging clip" on the bottom is brilliant, allowing you to dry out the bladder without any trouble. I just leave it hanging now, ready for my next adventure. The material is excellent, and it holds its shape both while you fill it and empty it. The quick connect and release works perfectly, and I love the handle on it for keeping it steady while filling.I have come to realize that I am a lazy hiker, who wants to get out there, but is also looking for an excuse not to, and this is one of those pieces of equipment that is so streamlined and sensible, you will use it twice as much, and be pleased with your purchase every time you do. Excellent.

Works great. Couple years in and no leaks. Handle makes fill easy. Definitely need to take a paper towel to finish drying around seams to get completely dry, but that’s any hydration pack.

I love the inserts in the bladder so it dries well. I also love the hook so you can hang it to dry. great product.